While analyzing the acid-base character of Group 2 oxides, Beryllium oxide () displays anomalous beh — s Block Elements Chemistry Question
Question
While analyzing the acid-base character of Group 2 oxides, Beryllium oxide ($BeO$) displays anomalous behavior compared to $MgO$, $CaO$, $SrO$, and $BaO$. Which of the following reactions definitively proves the amphoteric nature of $BeO$?
Answer: B
💡 Solution & Explanation
$BeO$ and $Be(OH)_2$ are amphoteric. They react with acids to form beryllium salts (e.g., $BeCl_2$) and react with strong alkalies (like $NaOH$) to form soluble beryllate complexes (e.g., sodium beryllate, $Na_2[Be(OH)_4]$).
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